The Testo 0603 2492 The robust food penetration probe (thermocouple type T) is used primarily for measuring the core temperature of food. In conjunction with a corresponding measuring instrument (e.g. testo 926, testo 735), the probe is EN 13485 and HACCP-compliant, making it particularly practical for use in the food sector. The special handle makes it easy to use when measuring the core temperature of semi-solid food. Measuring range -58.0° to 662.0 °F / -50 to +350 °C.